Coin-controlled program distribution system



5 Sheets-.Sheet 1 Filed Dec. 5, 1945 Feb. 20, 1951 G. PHI-:LPs 2,542,568

COIN-CONTROLLED PROGRAM DISTRIBUTION SYSTEM GEORGE PHELPS MMMA'f'rorneys Feb. 20, 1951 Filed Dec. 5, 1945 G. PHELPS COIN-CONTROLLEDPROGRAM DISTRIBUTION SYSTEM 5 Sheets-Sheet 3 Flc.

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Afmrneys Teb. zo, 1951 A G. PHELPs 2,542,568

COIN-CONTROLLED PRDGRAM DISTRIBUTION SYSTEM Filed Dec. 5, 1945 5Sheets-Sheet 4 FIG. 5

35h 4' 35o //`35c 34f 34d E C@ 1| o @9 o A 35 34h 66o 34e 60 f35fr l 4 v|`II m J Ll--l e7 Ke320 68 \60 64a se 65 64 64 FIG. 6 FIG. 7

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/Ylo y r| O INVENTOR. GEORGE PHELPS BY mi M M Attorneys G. PHELPS2,542,568

COIN-CONTROLLED PROGRAM DISTRIBUTION SYSTEM 5 Sheets-Sheet 5 www Y oo

INVENTOR. GEORGE PHELPS Ahornevs Feb. 20, 1951 Filed Dec. 5,- 1945Patented Feb. 20, 17951 i. if.:

ooINi-'ooNTnoLLED P'noGRAMjosTARI.. BUTIoN SYSTEM George Phelps,Chicago, Ill., assignor to Communication Equipment andEngineeringCampania` Ghicago I1l,-, a. corporation. of; Illinois YApplicatisn necemtr 5, 19:45, seriarN-u. seaside 2li-claims.(01,..179--16-31i '-I-his invention relates to-coincontrol-ledrelec#tricals'ignalingsystems and particularly to-H such .systems fordistributing' programs from a central vor sending station to=a numberoff temete coinc'onti'folled prcg-ramereproducing devices.

`t-present theremein-*commercialuse a large number `ofcoin-controlledprogram-reproducing or record-playing devices popularly known-es "jukeboxes. I -thas beenrea-lized that'it would lie-desirable to be abletoexercise some control cver'such devices ironia centr-al? station; forex'- ample to cause-the devices 5tomake announceu menta or reproduceadvertisingv material or to :control the natureIandfduilation offthepiiogram being-reproduced by'A the-devices. lt would: also'be-desirable totransmit the program itselfl vfrom af central station;thereby avoiding-1 the inves-tment in alarge nuinberlofl program'records which haveanextremely ephemeral popularity.

It i'san object -of the invention, therefores to *providev `a new andimpro-ved coin-controlled electrical Signaling systeml -by` mea-ns ofWl-lich announcements or*- a'dver'tising materiali,v or both, Vmay betransmitted from'- a central sending sta- `tion tof-remoteprogramereprodncing devices for -i-'epioductior-ig preferably'controlled conjoi tly with o'r independently of! theI depositv off Ainsilicio?'dt-:vices K -ItLi's` anotllierobziectfof" .the .invention .to.prd-

` vide ra newl Vand .improved coiT11-.controlledielec:L

trioal signal-ing" system by means; of which. the mali-Luiei andthedurati'on of the prosi-infatti 'repro'- :duced bythe seveizalycoin-controlled. devicesmay lbe readily controlled; fromy 1a centralsending station.;

For a betten understanding of the invention, Atogether with other andfurther objects thereof, .reference is hadA 'to the. followingdescription 4taken inconnectionwith the accompanying drawings While` itsscopeWill; be pointed zout in the appended. claims In.V accordance with.the invention, a coin-con.- v-troiled` electrical signaling: system forprogram .distributioncomprises; a: sending station` includ,- ing aprogram-representative signalesupply ciricuit.. and means forcontrolling the sending of Signals therefrom. The system also. includesa receiving station including a progiamnepresenettahve`lsignal-outptut-circuit and* al coinrcoi'itrolled means for lccn'tnolling the energization o'f the output circuit.V The system furtherincludes .a -signal-transmEsionflink betweenthe sending` and Yrceeivin'gstations,l means. 4at' the sending .station :controlledxby theinsitenamed meansfor trans@ mitting; a controlnsignal andi.:mean's atthe re- Izfeatnre-of'the.imzeition;lligsvigi an i gm'entar'y detail'views-fof' certain 'coin-openated elements included in the "mechanism'of .Figsy 3, #4'

'sewing stationl responsive .te the; contrai signal rfcr* modifyingtireactio'n .ofthe seein-edmoned `sending station.incIdes-allsobartannenn'ning'A 1i'- sentative'- circuitL or'fthe aniiounclng-v circui'and meanscontroHed byfsucli means for transmit ng 'fa control Signatonly upon" energizatioitlof the Further in accordance-'J the'.invention-vra .coin-controlled' electr signaliiitgf system"` of 'thetype described 'comprises .a plurality? of `sier-lali- -siipp'lycircuits-"and means for controlling-1 the 'ciricuits to --senclVsignals-theifefromninsequence, lto- .getner with. means a'tiftlie'sending. :sta-tion lfor transmittinga .control signal only upon' trans:-lmissioifi of a signal from a predetermined oneieof the; supply.circuits;

In accoirdance with. a further featuref 'the invention,- thereis:provided-ina :coinecontrolled Aelectrical signaling system'` oi the typedescribed, Ya coin-controlled.' rnechanisrnf'compnifsnig afcoin chiite,,coin-operated; element. movable fin r the chute, a Vpaireircom-'arresting fmemberslprotrud the chute vThe trm.coin is usediherein and in the appended rclaims to denoteeithen an actua-1 :coin: orslng.,A chckfor equivaientl Referring now' to; thegdrawings, Fig; M12 isazcin- 'cuit diagram, partially schematic, .ofi `a sending station andFigf..`2-is:.a circuitrdiagif .paiftiallf mf schematicyof areceivingwstatidn 'which together vcompri'sef an electiiicali`sigrlialing sys-ternY of? the invention; Figi-f3 a frontz-felevatiomFig: .4i fa back elevation and Fig. 5 a atop planview fofl'f'aecin-controlled' mechanism suitable :for use in the system-.0f Figsglandv2 iandcom isin" Vone and 5 in' several .phases` of operati-'ons;.While Fig. 9; is' a 'circuit diagram, partially.` yschematic of amodified1 torinoff sending. station operable 110 volt, 60 cyclecommercial power line.

sentative signal-supply circuit I and an announcing circuit II. Thecircuit I!! may be supplied from a record-playing phonograph which maybe of either the automatic or manual recordchanging type. For the sakeof simplicity, there is shown schematically an electric phonographcomprising a pick-up arm I2 cooperating with a turn-table I3 driven by amotor I4, the tone arm I2 being connected to the input circuit of amusic preamplier unit i5, the output terminals of which are connected tothe signal-supply circuit iIl. The announcing circuit il may beenergized from a microphone I6 through a voice preamplifier Il.

The sending station also includes means for selectively controlling thesending of signals from either of the signal-supply circuits I0 or II.This means may be in the form of a conventional key-operated telephoneswitch IB including a pivoted operating member I8a, an upper Imovableassembly I8b eiective to close normally open pairs of contacts I8c andI8d and a lower movable assembly I8e connected to close the normallyopen pairs of contacts If and ISg. The contacts i8c are eiective, whenclosed, to connect the announcement signal-supply circuit II to an inputcircuit I9, I9 of the signal-translating channel of the sending station.The contacts I8f are effective, when closed, to connect the motor I4 ofthe record-playing phonograph to supplycircuit terminals 2l! which maybe a conventional The contacts I8g are eiective, when closed, to connectthe signal-supply circuit I0 to the circuit I9.

The signal-translating channel of the sending station energized from thecircuit I9 may be of any suitable conventional design but there isilvlustrated, by way of example, connected in cascade to the circuit I9a multi-line limiter-ampliier unit 2I, a high-pass lter 22, a broad-bandcoupling transformer 23, a line-matching network 24, and a group ofsignal-translating circuits, which may be conventional telephone lines25, 25a and 25h, extending from the'network 24 -to a central telephoneexchange 26. There are also provided a group of outgoing telephone lines28, 28a and 28h which may lead from the tele- -phone exchange 26 to aplurality of receiving stations of the system represented in Fig. 2, towhich reference is now made, it being understood that-in accordance withconventional practice, the several ingoing lines 25, 25a and 25h andtheir corresponding outgoing lines 28, 28a and I281) are continuousthrough the exchange 26 and -to the several receiving stations. The unit24 serves to match the impedance of the transformer 23 to the differentimpedances of the lines 28, 28a and 28D to receiving stations atdiierent lccations and distances.

The receiving station of Fig. 2 includes a signaltranslating channelconnected to the incoming VVcircuit 28 and including, in the ordernamed, a

high-pass iilter 29, a music amplilier 30 having an output circuit 30aand one or more programrepresentative signal-output circuits, such asoutput circuits 3| and 4I connected to signalv re- -producers or loudspeakers 32 and 42, respectively. Connected between the circuit 30a andthe signaloutput circuits 3| and 4I are step-by-step coin- 'controlledunits 33 and 43, respectively, having input terminals 33a and 43a,respectively, connected in parallel to the output circuit 33a of thesignal-translating channel. It is to be understood that the units 33 and43 may be identical so that a description ofv one will suice,corresponding elements of the two units being reprsented by referencenumerals separated by one decade. Thus the unit 33 includes acoin-operated pivotedswitch 34 provided with a pair of normally closedcontacts 34a and a pair of normally open contacts 34h. The movableelement 34e of the switch 34 is connected to one side of thesignal-translating channel 30a through normally closed contacts 35a of atwo-position switch or relay 35 provided also with normally opencontacts 35h. The lixed ones of the normally open contacts 34h and 35hare connected in common to one side of the signal-output circuit 3|, theother side of which is constituted of a ground connection, asillustrated. The xed one of the contacts 34a is connected to groundthrough a load resistor 3E which approximately matches the impedance ofthe loudspeaker 32.

It will be understood that the telephone lines 25a, 25D, 25e, thetelephone exchange 26 and the telephone line 28 together constitute asignaltransmission link between the sending and receving stations. Itwill be understood, however, that this signal-transmission link may beof any conventional type of wire or space radiation link.

The electrical signaling system of the invention also includes means atthe sending station, controlled by the means for selectively sendingsignals from either of the signal-supply circuits IFJ or II, fortransmitting a control signal only upon each energization of the linkbetween the sending and receiving stations from the announcing circuit II and this control signal preferably has identifying characteristicsupon the energization and deenergization of the link from the announcingcircuit. For example, this control signal may be a single continuoussignal or a group or series oi discontinuous signals but in the systemspecically described, the control signal is a continuous low-frequencysignal, such 162/3 cycle signal, supplied from a source 50 through animpedance-matching transformer 5I, a low-pass filter 52 and the switchcontacts Id of the key I8 to the input circuit of the linematchingnetwork 24 through the coupling transformer 23. With this arrangement,the continuous low-frequency control signal is impressed upon the linkincluding the signal-translating channel of the sending station onlyduringthe energization of the announcing circuit II Vby operation of thekey i8a to its uppermost position and the identifying characteristicsoccurring upon the energization and deenergization of the link from theannouncing circuit II are the initiation and termination of thecontinuous lowfrequency control signal. If desired, there may also beprovided at the sending station means for transmitting a control signalindependently of the main control key I8 whereby a program signal may beapplied to the signal-output circuit 3I independently of the deposit ofa coin in the coin controlled unit 33. This means may 'comprise amanually operable key 53 having a pair of normally open contacts 53a,53a for connecting the low-frequency control signal source 53 to thesignal-translating channel of the sending station independently ofoperation of the main control key I8.

The electrical signaling system of the invention further includes at thereceiving station relay means responsive to the low-frequency controlsignal for mechanically modifying the action of the coin-controlledunits 33, 43 and having electrical contacts for independently energizingthe 76 signal-output circuits 3I, 4I thereof. This relay asignen means;comprises albWLpasSlIter drdesigne'd'to pass -the`lowi`1requency=contr'ol.- signal' and? hav-l ingj input terminals eonnecteditorthe-signal input'f-circuit 28 and output terminals? connected througha vacuum tube amplifier 55 toa relay 56 lhav-ing normall'yfopencontactstot- Thelcontacts 56m are connectedv` tol'c'on'trol the energiza.-tion-of'theltw-po'sition-switches 35;4'51from sup plyecircuit terminals51,. which may' bel energized With124 volts-direct; current. With'th'econnectionsf as s. shown; it' isx seenthat',4 with. the switch 35?V in`an energized: positior-i;Y itsi contacts.'` 3551 are effectivetoenergizei the; output circuiti 3 I.v direct- Iy.,. while'linthezdee'nergized position they are effectiveto.energize.theloutputlcircuitfl .through contacts!` 3115 of the.coin-operated. switch.. 34; Ifdesireu, the;coin-controlled unit 3.3 may.in;- eludel-a signal"- or pilot light: 36? conne'cted to.7 be energizedfrom supply-.circuit terminals; 57! throughithe'fcontacts55d oflfrelay55.-`

The. operation. of: the; relayY means; comprisingthe'rel'ayEandithelswitche35 and.l45.in;modifyinghthe actionpftheicoinL-controlled. switches 34 and 44,l.respectiv.ely, .will be:deferred1until`v after a". dl-:tailediA description. of.;Y the.coinecontrolled mechanism,..per. se; Im consideringtthe opera;- tion`of' the: system. as a. Whole it: may be. merelystatediat..thisapointsthatthe switch 35e-:cooperates Wit-h. thecoin-controlled switch 341 to; .advance a deposited-. coin: in steps:through thee-z mechanism, preferably allowing it to be collected ina.col= lectioni hopper; only; aiter/` t'wo; successive: operationsoftheswitch. 35.-... Itlwillifurtherxbe. assumed that allrof.thecoinfcontrolled units 33, 63, etc; areI ,connected insparallel'and.. that there is a singlesignaL-translating link; between the sendfIing, station ofrFig.. 1 r andeaclnof the coin-controlledzunits.. ItLis.aniobjectofthe system to permit an announcer atthe sendingrstation.alternatelytof send;news, advertising; material orannounc'ements.betweenfsuccessive periods of music transmission.v The service'. ischarged for. on a coin, basis 1 and. the' operation, of the system issuch that each; customer is assured of at least oneicomplete record.program Inv order to ensurefthis feature, the collection of coins:at'the coin-control device is under the,1control of the operator at thecentral stationand. the arrangementis such that a coin deposited in thecoincontrolled device atthev receiving station is not collected untilafter two'successiveannouncement periods,

Turning now to the specic operation of the system represented in Figs..1 and,2, t will. be assumed: that the operating, element 18a: of -thekey I 8-is initially operated toits upward. position. Eurther, the.operation of only the. coin-controlled device will be consideredspecically since the devices 3-3 and 3 Yare identical. Under theseconditions any announcementmade into the microphone IG is amplied intheunit H and translated over the channel comprisingv the elements I9,2l and 22, 232and`21l and one ofthe telephone lines 25a, 25h, 25 tothetelephone exchange 25; There the program signal is applied to theoutgoing telephone circuit 28connecting withthe receiving station and istranslated by the units 29 and 30 and the circuti Stato the inputterminals 33a of the coin-controlled device 33. Under the conditionsassumed', withno coin deposited in .the device 33 and the contactsiBdaclosed and the. contacts 3M) open andneglectingfor the moment. the eiectof the controlsignal sent :from the. sending station, thecontacts35aofswitch S5 are closed andthe contacts 35h-opensc that the ftinuousfloW-'f-requency Signal'.A Relayf'iclosesits contactsI 5to;thus-impressing. potential from". they Sigmar-output circuits-.l2 isopeni ati the: contacts 34h and 35h".- However,Y upon-fV theloperatiomottheJ keyJ Iii? as described-,iv a-- continuous Ylow-frequency' signa-lifrom thesourceis simultaneous@ ly applied throughl contactsJ ld. tothe'. coupling transformer 231 and thislsignal. isi translated overthc-:1signall-transmissionA linlrv described above; to thellow-pass@lilter flat vthe receiving station. and thence f to`v the'vacuum-tube' amplifier 55; and re; lay-"56,- wliich designed to'respondto; thislcon'- supplytermin'als tuponthe' two-positionhswitcli 35which'close'sits` contacts 3,511- to' energize. the sig-naloutputcircuitil directly. andi .to supply the announcement signal to.. the;-loud-speaker Szfor reprmi'uction' Simultaneously; the. energizationcircuit' f orthe' signal indicating: lamp 35"' is f corn".- platedEthrough the contacts 552i ofi relay' 56.1.to iii-.- dicate that anannouncement is.v beingrtransamitted It istobe notedthat,.withl thisarrangesment", an announcement-istransmittedtothesig@ nal-outputcircuits! independently of the'deposit of a coinvin the'coin-controlledrnechanism-33 to close-thecoineoperated switchtfl.-V

When the operator' at the sending station-has completed hisannouncements he operates.. the elementi I'Swoitl e key. i'lto r itslower positions operationhastlie effectof opening the-lconta'cts ES-c;thereby disconnecting the announce"- ment'signa-l circuiti i' iromithesignaltransla-ting channel described' above.v Simultaneously, thecontacts i Y8d disconnectV` the lowfrequencyv signal' frorn-thesource5cl from ther couplihgl'transfor'mer 23 ofi the signal-translating YchannelY so`= that.' Y the relay 5t and the-switch 35 aty ther'eceivingstar; tion drop" out,V thereby' opening the contacts 356 and closing thecontacts 35u to-put theener'gization of the signal-output circuit 3Funder4 the control. of 'the coin-operated switch. 34.'

Simultaneously with the opening of'thecorrt'acts' IS'c' and" it'dj thecontacts.' l'farec'los'ed' to energize the motor i4' of therecord-playing phonograph'from supply. terminalsV 25" through contacts{'8'15 The rotation off the turn-table V3 by themotor. Ii'causesthepick-up arm. I2t`o, dvelop. and apply. a. program signal to the unitI5 for amplification. andthe" ampl'iii'ed" signal is -ap`-. pliedAthroughthe contacts l'8`g tothe. input cir.- cuit, la: of the.signalltranslating channel describedv above.v This signallisvtranslatedl byV the signal-transm-ission linkand impressed upon`V theinputterminals 33a of the unitv 33. If no coin is deposited inthe unit,the signal. is.. not reprof ducedby the loudspeaker 32.. However, if acoin has been deposited in the unit, the coin is effective to actuatethe switch 34 to closeits contacts 34h; thereby applying the signal.from the input.

tterminals--523er. through the contacts 35a. and the contacts 3419 tothe signal-output circuit 3Lr` for reproductionby the loud speaker. 32,as described in'more detail hereinafter.v l'

The transmissionof the low-frequencycontrol signal from the source 5oconcurrenth7 with the transmission of theannouncement signal iseffective to advance the coin in the unit 33 one step in its travelthrough.l the unit. Upon the transmissionof a second control signalaftera coin has been deposited, the coinis released from- .the unit 33and collected ina suitable hopper;

By this, arrangement, the listener is ensured. of at least one completerecord program from Ythe phonograph l2, I3, le and, if hiscoin isdeposited at any intermediate point in any particularv recrd, he willhear the remaining portion of that record and the following completerecord.

In case for any reason the operator should wish to send a musicalprogram to the receiving station independently of the deposit of a coinin unit S3, he may do this by closing the key 53, whichis eiective toimpress the control signal from the source i) through the contacts 53a,53u, on the signal-transmitting channel for operation of the relay 56and the switch 35 indey pendently of operation of the key i8 to theannouncing position in which a control signal is automaticallytransmitted. By this method, the operator is enabled to provide thelistener with a free program, if this is desired Jfor any reason.

Turning now to Figs. 3, 4 and 5 of the drawings, there is illustratedone specic embodiment of coincontrolled mechanism suitable for use asthe units 33 and 43 of Fig. 2. This mechanism comprises a plats-likeframe member to which f is secured a coin chute 6I. At the upperentrance of the coin chute is a spurious coin ejector which may be ofany conventional type, although there is illustrated by way of example asmall-coin ejector 62 having a light hair-spring 62a having a reverselybent portion projecting into the coin chute. Opposite the ejector spring62a is an aperture 63 in the frame plate 6i) connecting with the coinchute 6I, the width of this aperture 63 being such that any coin of asize smallsr than that for which the coin chute is designed is ejectedthrough the aperture 63 by the spring 62a in its travel down the chute.The spring 62a is mounted on a ilange 62h normal to the plane of theframe plate B6 and registering with an aperture 6ta in the coin chutewhich is too small to permit coins to pass therethrough. The coinejector 62 is support-d from a bracket 6:2 on the rear of the frameplate 6i? and this bracket is pivotally supported at one edge oi' theframe plate St by means of the hinge 64a and hinge pin Gb. The bracketis biased by means of a compression coil spring into the position inwhich it covers a recess 66a in the upper edge of the frame plate 66joining the recess 53 but of a width suicient to pass normal coins.Cooperating with the ejector bracket EG is an operating bracket 66,which may be of conventional angle section, supported by a pivot pin 6limmediately above the hinge 64a. The bracket 6B is, provided with anupset camming surface or protrusion 68a which is disposed to cooperatewith a camming section 64C of vbracket 66 so that, when the bracket 6eis depressed, the protrusion 56a engages the portion 64o and cams thebrack-t 613 from its normal position against the action of biasingspring 65 as shown Inost clearly in 5. In this position, the flange 62Dprotrudes through the apertures Bla and a. and positively ejects anycoins which may have become lodged in the upper portion or the coinchute.

The coin-operated switch 34 of Fig. 2 comprises a coin-operated elementor arm 34d having a bent over arm 3de projecting into the coin chute andadapted to be engaged by a deposited coin. The element or arm 31M issecured in a block 34;* of insulation material which, in turn, ispivotally supported in a bracket 34g secured to the frame plate 60. Theblock 34j has a flat 34h on one side thereof Which, in the position ofthe elements `illustrated in Fig. 3, engages the switch arm 34o in sucha position that the contacts 34a are closed *and the contacts 34h areopen. A torsional biasoiset portion 341' of the arm 34d to bias theswitch into the position illustrated in Fig. 3 in which the portion 34eof the coin-operated element is at the upper end of an aperture 6I?) ofthe coin chute 6l.

Within the coin chute 6l there are arranged a pair of coin-arrestingmembers protruding into the chute and spaced along the path of movementof a coin therethrough. Specifically these members may be in the form ofa pair of pivotally supported members or dogs 68 and 69 having uppercoin-arresting shoulders 68a and 69a and lower coin-arresting shoulders68h and 66h, respectively. The pivotally supported dogs 63 and 69 areinterconnected through a pivotally supported member or dog 'i6 in thenature of an idler or rotation reversing gear to ensure simultaneousmovement of the members 68 and 69 about their respective pivots in thesame sense. There is also arranged in the coin chute a thirdcoin-arresting member 'H protruding into th,J chute and preceding themembers 68 and 69 and normally ineiective to arrest the travel of a cointhrough the chute but actuated by the rst deposited coin to arrestsubsequently deposited coins. The member 'I I ,has an uppercoinarresting shoulder 'Ha and a lower coin contacting surface 'Hb andis effective in the manner described as will appear from the followingdescription of the travel of a coin through the coin chute.

The coin-controlled mechanism 33 also includes signal-responsive meansconnected to actuate the members 58 and de scquentially to arrest a coinin its travel through the chute. The signal-responsive means comprisesthe two-position relay or switch 35 described above. This relaycomprises a bracket-like magnetic armature 35o pivoted at 35d and havingan extending arm 35e engaging a notch 68o in the edge of thecoin-arresting member 68. The relay 35 also includes the two-positionswitch 35a, 351:, described schematically above. S cured to the frameplate 60 but insulated therefrom are a series of circuit terminals Za,12b, l2c, connected with the switch contacts 34a, 34h and 35a and 35o,as indicated in Figs. 2 and 3.

The signal-responsive relay or switch 35 includes means for biasing thecoin-arresting members 68 and 69 to support a deposited coin initiallyon the lower shoulder of the first of the members to be contacted, thatis, the shoulder 68h of the member 68. This means may be in the form ofa leaf-biasing spring 35j acting against the arm 35e of the armature 35oto bias it into its lower-most position, that is for biasing the members68 and 69 into their limiting counterclockwise positions.Signal-responsive relay 35 further includes means connected pivotally toactuate the coin-arresting members 68 and 69 in the same sense againstthe action of the biasing spring 35j. this means being the magneticarmature 35o which, when attracted by the winding o1" the relay, iseffective to raise the arm 35e and thus to move the coin-arrestingmembers 68 and 69 in a clockwise direction about their pivotal supports.

The operation of the coin-controlled mechanism may be best Iunderstoodby reference to Figs. 6, l and 8 of the drawings which show thesucessive steps in the travel of a coin through the coin chute. In Fig.6, a rst coin 73 when dropped into the chute passes the upper shoulder'Ha of the coin-arrestingrmember 'H and comes to rest against the lowershoulder 58h of the coinarresting member 68. At the same time, the

asesinas.

9i member'l i whichfis freeto rotateabout its pivotf. is rotatedzin acounter-clockwise direction by theY weight oi the-coin "I3, thus.causingthe shoulder 'Ha toprotrude into thecoinlch-ute and arrestI asecond coin 'l whion'may be deposited before the' coin fhastravelledthrough'the chute andbeen collected. The several positions ofthe elements shown in Fig. 6l correspond tothat when a coin is-4deposited during the playingl of al program when' n'o control signal-isfbeing transmitted, so that the signal-responsive: relay S isdeenergized.

-When a control signal is transmitted, asf' de scribed above, thesignal-responsive relay actuated and its arm 35e engaging the notchtco1" the member 68' rotates-'the elements'fandfll both in a clockwisedirection about their respecf tive pivots to the positions shown in Fig.7. Thisr` movement ofthe coin-arresting rrember' allows the coin i3 t'opass the coin-arresting shoulderi-bv but causes the upper shoulder6311iy of the member t9l to protrude into' the coin chute and" arrest..the coin las shown in Fig. 7. At the same.v time-,thecoin'l' releasesthe member 'H` so that. without otherprovision, the second coin 14would. followy immediately behind the coin 13; Thisv action is'prevented by the protrusion of the upper shoulder' 68a of the member 63upon the movement'of the member @il in a clockwise' direction, thusarresting theY coin 'eil at shoulder 68a asv shown in Fig. 7. The dropof 'the-'second coin 'hito shoulder68a.v is suflicient to preventtherreturn of the coin-actu.- a-tedf arm 34d to a position correspondingtothe opening of-'contacts-3ta,: thus ensuring a contif nuity of-theprogram-signal supplied to output cireuit' i Incase the' first coinlvwereldeposit-v ed' 'during the transmission of' an announcementz anda'c'ontrol' signal-it would `occupy Ithe position shown by the coin 'lf3of Fig. 7 before droppir'ig-to' the position shown in Fig. 6.

Upon the termination of thel announcement and: the control-signal *from*the sending station;v the signal-responsive relay is` deenergized andreleased,` whereupon the biasing spring 35f acting on the armature 35oyreturns the coin-arresting members S8 and to their-'normal'. positionsrepresented in Figs. 6f and 8, whereupon the coin 'I3 drops upon thelower' shoulder 59h ofthe coinarresting member 69 as shown in Fig. 8.Simul-A taneously the second coin M'drops from the upper. shoulder' @ccivoi the member yto the-lower'shoulder 68o; thus occupying thef'positionof the -rst coin ofFig; 6 so that itis in position to repeat the cycleof the coin 'I3 upon subseqluent'transmission oi announcements andtheassociated control sig.-

i nals;

Upon the transmission of. a second announcement andra second vcontrolsignal', the` signal-re'- sp'onsive' relay 35' isfagainf actuated torotate the' coin-arresting members-68 andilf to theirv posf tionsrepresented in Fig; y'.7, whereupon the coin is released from the lower'shoulder 59o as shown in Fig.. 3 and collected in a suitable. hopper(not she-wn) associated with the coin chute..

Inv other words,v the Signat-responsive"relay 35A is: effective to.advance a `coin*-througl'iih-e coin control-led mechanism by at leastone stepV in re-k spense to the transmission ofv each control signal.Specii'lcally itis eiTec-tive to advance. a coinone step in response toeach-.identifying characterist-ic oi the. control signal, that` is oneystep: uponA initiation of .the control signal and one step uponvthe*terminatioirthereot,wherebyafdcposited coin is collected Ionlyuiporiv the receipt of two succesar sive control'. signa-ls.- n

,Thecmeuratipn Qf-the'camming elementflfi:

of theswitch 3ft-is suchfthat, upon the falloi."A adeposited coin 'I3-tothey lower shoulder 68b'of. thefcoinearresting member '63 as shown inFig.. 6,1.

it-'is effective Ato actuate the movable contact 34e of the switchto-close'the contacts 34o and open` thef contactsV 34a. As describedabove, as soonv asthecontacts 34h-are closed,- a program signal.-

Further movement of the coin'13 -to the posi-.- tionsrepresented invFigs: '7 andf has :oo-further effect on the switch 34. That is, theoutput'cir-rv `cuitiSl is energized in response to Vthe deposit or I acoi-n for at least the-interval between the'trans== mission of twosuccessive announcements and. theirassociatedv control signals.

Theffelectrcal'signaling systeml of the inVen-e tion'fis also adaptedforuse in a completely auto-- matic' system. in which" the:announcementslare madeY from-an announcement record player and.

inwhich the announcements andthe music pro-- grams succeed one` anotheralternately.

from may be identical-to' that ofFig. 2. I-nV the system of Fig. 9 theprogram-announcement key lfis. replaced' by an automatic sequence rela-yswitching circuit. In the circuit of Fig. 9; the;-

program-record-playing phonograph I2', I3; I4'- corresponding elementsoi'Fig. l;

ferrelay-B- and Vthrough arhigl'i-passy filter lH-a-ndVAa-couplingtransformer 82"to the remainingAportionofthe.signal-translating network, suchas-- the lineematchingnetwork 24- ofI the'system'ofl Fig. 1.

The. electrical'signaling sys-tempi Fig. 9 also:

includes an v.announcement=representative signal supplycircuit 83ysuppliedA from a. pick-up arm-311LA cooperating with areccrd-turn-table85 driven by amotor.-86.i The circuit 83 is connected by' way" of. apreamplier unit 8l and contacts slice/off.A a@

transfer relay- 88 to the=signaltra-nslating'channel includingthe'high-pass filter 87|. The low-- frequency controlsignalsource 50couplingtrans` formera! and-low-pass filter 52 may be identical to.correspondingelementsof Fig. land the output of this circuit is appliedthroughV contactsV 8811 of relay- 88 to-thez input side of thebroad-band` coupling=` transformer 82.

'The electrical signaling system of Fig.` 9v also includes means forcontrolling the energization of. the signal-transmission.v link from thesignalsupply circuits mand 83 automatically tosend! signals .therefrominf sequence,r this means pref.'- erablycomprsing-a plurality of meansindividu-- ally responsive to the` energization of the signal-` supplycircuits l, 83 for maintainingallbut-onel thereof de-energized.Specifically, this includes ain-instantaneous pick-up,vslow-release-relay- 89 energized fromthe` preamplifier 81 througha-sui-table amplifying and rectiiying controlY unitV 90. The. relay 831is providedl with contactsa which control theexcitation of thetransfer-.relay 8i)-l from asource 91; Similarly', there. is. provideda.

scondinstantaneous pick-up, MDW-release relay 92: energizedfrom'thesignal-supply circuit Ill.v through anamplifying and rectifyingcontrol unit 93.- 'Ifh'e-relay 92iis provided wi-thcontacts 92o. Whicll.control the energization: of. the A transfer.l

Thesending station'of such a modified form of the'. inventionisrepresented in Fig. 9, it being under stoodthat` the receivingu stationoperating there-Y sagesse :hay as from the source si.' Ther-.rentrerrelay 88 is also provided with contacts 88e for controlling theenergization of the announcement-player motor 86 from suitable supplyterminals 93 which may be ordinary 60-cycle l l@ volt commercial line.Similarly, the transfer relay 8Ul is provided with contacts 80h forcontrolling the energization of the program-player motor I4 from thesupply terminals 93.

The electrical sending station of Fig. 9 also includes means forinitiating the energization of one of the signal-supply circuits I9, 83,after which the automatic transfer from one circuit to the other iseffected as described hereinafter. This initiating means comprises amanually operable three-position switch 94 having an operating element94o and contacts 94h and 94o closable inthe upper position of theoperating element S/-En and contacts Std closable in the lower operatingposition of the element 94a, all contacts being open in the neutralposition of the operating element 94a as shown in Fig. 9. Theenergization circuit for the transfer relay 8B is completed through thecontacts 94h While the energization circuit for the transfer relay 88 iscompleted through either of the contacts 94e or 94d,A these contactsbeing connected in parallel.

4l'n considering the operation of the modified sending station of theinvention represented in Fig. 9, it will be assumed that initiallyneither the program player nor the announcement player are in operationand that the switch 94 is in the neutral position illustrated. If nowthe operating element 94a of switch 94 is momentarily operated to cosethe switch contacts 94d, the energization circuit for the transfer relay88 is completed and this relay operates to close its contacts 88o tostart the announcement player motor 86 Vand. simultaneously to close itscontacts 88a to connect the announcement-signal circuit 83 to thesignal-translating channel of the sending station. In addition, thecontacts 88h of relay 88 arey effective to apply a control signal fromthe source 5U to the signal-trans'atcontacts 94d and quickly to closethe contacts- 94h and 94o. This operation is sufiiciently rapid that thetransfer reay 88 is not deenergized and, While the circuit for thetransfer relay 8G is energized through the contacts 94h, it is at thismoment interrupted at the contacts 89a, so that the system continuesoperation in the condition described, that is, with an announcementsignal from the supply circuit 83 and a low-ireoluency signal from thesource 50 being transmitted' simultaneously.

When the playing of the record by the announcement player 84, 85, 86 hasbeen completed so that the announcement signal applied to the'` controlunit 99 is interrupted, the slow-release relay 89 drops out after ashort interval of time' closing its contacts 89a to energize thetransfer relay 85. This relay then operates, closing its contacts 89a toapply the program signal from the circuit l0 to the signal-translatingchannel and also closes its contacts 80h to energize the motor I4 fromthe supply circuit terminals 83.

As soon as the program player begins to play, the program signal at thecircuit I!! is applied to the control unit 93 and energizes theslow-release relay 92, thereby opening its contacts 92a and deenergizingthe transfer relay 88. When relay 88 is deenergized, the connectionsdescribed above to the announcement player 84, 85, 86-are interrupted sothat only the program player I2, I3, I4 is in operation. When theplaying of the program record is completed, the program signal no longerappears at the supply circuit I0 and the slow-release reay 92 isde-energized, thereby closing its contacts 92a to complete the circuitto the transfer relay 88. The transfer relay 88 then operates tocomplete the connections to the announcement-record player, as describedin the rst instance. If the announcement player 84, 85, 8B and theprogram player I2, I3'and I4 are either of the automatic record changingtype or the automatic repeating type, the cycle described above will berepeated indenitelythe transfer relays 8B and 88 and their associatedcontrol relays 89 and 92, respectively, serving'as interlocks betweenthe announcement-signa1 circuit 83 and the program-signal circuit lil toprevent simultaneous operation of both of these circuits at the sametime. To interrupt the operating cycle, it is only necessary to actuatethe operating element 94a of the switch 94 to its neutral position,thereby deenergizing the transfer relays and S8 at the contacts Stb and94o, respectively.

While there have been described what are at present considered to be thepreferred embodiments of the invention, itwill bemapparent to thoseskilled in the art that various changes and modicatons may be madetherein Without departing from the spirit or scope of the invention.

I claim:

1. A coin-controlled electrical signaling system for programdistribution comprising, a sending station including aprogram-representative signal-supply circuit and means for controllingthe sending of signals therefrom, a receiving station including aprogram-representative signal-output circuit and a coin-controlled meansfor controlling the energizaton of said output circuit, means formodifying the action Aof said coincontrolled means, asignal-transmission link be tween said stations, means at said sendingstation controled by said rst-named means for transmitting a controlsignal, and means at said receiving station responsive to said controlsignal for renderingr said means for modifying the action of saidcoin-controlled means effective.

2. A coin-controlled electrical signaling system for programdistribution comprising, a sending station including a plurality ofsignal-supply circuits and means for selectively controlling the sendingof signals from either thereof, a receiving station including asignal-output circuit and a coin-controlled means for controlling theenergization of said output circuit, means at said receiving Station formodifying the action of said coin-controlled means, asignal-transmission link between said stations, means at said sendingstation controlled by said rst-named means for transmitting a controlsignal only during energization of said link from a predetermined one ofsaid signal-supply circuits, and means at said receiving stationresponsive to said control signal for rendering said means for modifyingthe action of said coin-controlled means eective.

3. A coin-controlled electrical ySignaling system for programdistribution comprising, a sending station: including' a;programrrepresentative. sig-r nal-supply circuit, a-n announcingcircuit'.-.and.1. means for selectively controlling ther sending ofsignals' from either thereof, af receiving-station.

including a signal-output circuit and a. coincontrolled means forcontrolling theenergization.

of "said outputcircuit, means at said`receivingV staticn for modifyingthe action of saidacoin-conitrolled means, a signal-transmission linkybetween said stations, means at said sending station controlled by saidfirst-named means for transmitting a control signal only-uponenergization of-said link from said announcing circuit; and means atsaid receiving station responsive to said controi signal for renderingsaid means'forA modifying theV action of said coin-controlled; meanseiie'ctive. Y

4i A'coin-controlled electrical signaling system for programdistribution comprising, a sending" station including aprogram-representative signal-supply circuit, an announcing circuit andmeans' for selectively` controlling the sending of signalsl from either`thereof', a receiving station includinga program-representativesignal-outputcircuit and a'coin-controlled means` for controlling theenergization` of said output circuit; means atsaid receiving station'lfor modifying' the'action of said coin-controlled means, asignal-transmission link between said stations, means at said sendingstation` controlled by said rrst-named..

means for transmitting a continuous' low-irequency control signal onlyduring energization oi said link from saidannouncing circuit, and means.at said receiving sta-tion responsive to said control signal 'forrenderingsaid meansfor modifying the action ot said coin-controlledmeans effective.

Q 5'. A coin-controlled electrical signaling system. for. program.distribution comprising, .a sending station including aprogramrrepresentative signal-supply circuitv and means forcontrollir-igv thesendin'r oisignals therefrom, a receiving. stationiincluding a. program-representative. signaloutput circuit andastep-by-stepV coin-controlled means for controlling the energization ofsaid output circuit, a signal-transmission link between said station,means atsaid sending station. controlled by said iirst-narned means fortransmittingV a control signal, and means at said receiving..

station responsiveto said. control-signal for advancing acoin throughsaid coin-controlledy means by at least one step-1.

6. A coin-controlled electrical signaling system for. programdistribution comprising, asendingl station including aprogram-renresentativef signal-supply circuit and means forcontrolli-ngthem sending of signals therefrom. a1recei-ving stationincludingaprogram representative signal-outnut circuit and .astep-by-step :coin-controlled. means..

forc'ontrolling the energization oisaid output circuit, asignal-transmission link' between.saidv stations, means at saidsending'station'controlled" by said rst-named means for transmitting acontrol signal onlylw iile saidlink is disconnected from;af!.receiving-fl station includingv af; programa'L representative:signal-output'. circuit.; andia: stepsby-step. coin-controlled meansfori controlling tlle: energization of said output circuit, asignal3trans-- mission: li-nkabetweerr .saidv stations, means; attsaid,sending station controlled by saidz nist-named: means: for transmittinga. control. signalhaving.

identifyingcharacteristicsv` upon the energizationV and`de-energizationof said link fromv saidians nouncing circuit, and' meansat said receiving sta;-

tion responsive to. said. controlk signal for advance-- ingaco'nthrough` said coin-controlledmeans cnet step: in response to eachof said identifying'charz-z acteristics ot said control signal.`

8. A coin-controlledv electrical signaling. system.l

for program distribution. comprising'a sendingv station including-a1program-representative siganalfsupply circuit, an announcing circuit andmeans for controlling th-e sending of signals :thereffrom, a receivingstationrincluding a.A programrep-resentative signal-output circuit and astep;-` Icy-stepv coin-controlled `means for controllingthe?energization of* said output circuit',l a: signaltransmissioniinlrbetween said stations, meansat lsaid sending station controlled bysaid first-- named means for transmitting a1 continuous con` trol signalonly during the energizationof-"sai'd'I link from said announcinglcircuit, and means at Y said receiving station responsive to saidcontrol Lsignal for advancing a coin through said! coin-- controlledmeans one step upon the initiation of saidcontrol signaland'onestep'u-pon the termina tion thereof. Y Y f 9. A coin-controlledelectrical signaling?systemy forv program distributionI comprising, a.'sending-.' sta-tienv including a 1 program-representative sig'-nal-supplycircuitl and meansl for controlling the@ sending of'signalstherefrom, a receivingyr station including a'program-representativesignal-output circuit and a coin-controlled means"for control'- lingr the energiz'ationA oi said output circuit, asignal-transmission link between said stations, means atf said sendingstation controlled by- 'said first-named means for transmitting alcontrol signa-l. and means at said receiving stationy re-` sponsive toVsaid control signal' for collecting aA deposited coin upon the receiptoi two successive control signals, whereby said output circuitiisenergized in response toA a deposited coin for at least tlie intervalbetween successive contro? signals.

10. A coin-controlledV electrical signaling' system for programdistribution comprising, a-sending f stationv including aAprogram-representative signal-supply circuit, an announcing circuit and"meansior selectively controlling the sendinggOf signalsfromeither."thereof',y a receiving station: includingaYprogram-representative signal-:output cireuitand a coin-controlledmeans` fcrgcontroli-j ling` the energizationoi said output circuit,asignal-transmission. link between said' stations; means at said. sendingstation controlled by said' iirst-named means for transmittingra controlsignal upon' each energizaton of said link fromsaid announcingcircuit,yand means at said receiving v. station responsive to said controlsignal. for collectinga deposited coin upon thereceipt oiltwo,

.successive control signals, whereby said, output'. circuit isenergizedin response toadepositedcoini foratleast the interval betweensuccessveanf nouncements.

li. A coin-controlled. electrical signaling. system for programdistribution comprising, a sending station including. a. iprogram-represent'at'iveY amasser signal-supply circuit and means forcontrolling the sending of signals therefrom, a receiving stationincluding a program-representative signaloutput circuit and acoin-controlled mechanism, said mechanism comprising a coin chute, acoinoperated element movable in said chute and effective to control theenergization of said output circuit, a pair of coin-arresting membersprotruding into said chute and spaced along the path of movement oi acoin therethrough, a signaltransmission link between said stations,means at said sending station controlled by said irstnamed means fortransmitting a control signal, and means at said receiving stationresponsive to said control signal for actuating said members, whereby adeposited coin is collected upon the occurrence of two successivecontrol signals.

12. A coin-controlled electrical signaling system for programdistribution comprising, a sending station including aprogram-representative signal-supply circuit, an announcing circuit andmeans for selectively controlling the sending of signals from eitherthereof, a receiving station including a signal-output circuit and acoincontrolled means for controlling the energization of said outputcircuit, means at said receiving station vfor modifying the action ofsaid coin-controlled means comprising means for independently energizingsaid output circuit, a signal-transmission link between said stations,means at said sending station controlled by said rst-named means fortransmitting a control signal only upon energization of said link fromsaid announcing circuit, and means at said receiving station responsiveto said control signal for rendering said means for modifying the actionof said coin-controlled means effective, whereby an announcement may betransmitted to said output circuit independently of the deposit of acoin in said coincontrolled means.

13. A coin-controlled electrical signaling system for programdistribution comprising, a sending station including aprogram-representative signal-supply circuit, an announcing circuit andmeans for selectively controlling the sending of signals from eitherthereof, a receiving station including a signal-output circuit and acoincontrolled means for controlling the energization of said outputcircuit, a signal-transmission link between said stations, means at saidsending station controlled by said iirst-named means for transmitting acontrol signal only upon energication of. said link from said announcingcircuit, means for mechanically mod'fying the action of saidcoin-controlled means including electrical contacts for independentlyenergizing said output circuit, and relay means at said receivingstation responsive to said control signal for rendering said means formechanically modifying the action of said coin-controlled meanseiective, whereby an announcement may be transmitted to said outputcircuit independently of the deposit of a coin in said coin-controlledmeans.

14. A coin-controlled electrical signaling system for programdistribution comprising, a sending station including aprogram-representative signal-supply circuit, an announcing circuit andmeans for selectively controlling the sending of signals from eitherthereof, a receiving station including a signal-output circuit and acoincontrolled means including a coin-operated switch, asignal-transmission link between said stations, means at said sendingstation controlled by said first-named means for transmitting a controlysignal only upon energization of said link from said announcingcircuit, and relay means at said receiving station responsive to saidcontrol signal for mechanically modifying the action of saidcoin-controlled means, said relay means having a two-position switchconnected in one position to energize said output circuit directly andin the other position to energize said output circuit through saidcoin-operated switch, whereby an announcement may be transmitted to saidoutput circuit independently of the deposit of a coin in saidcoin-controlled means.

15. A coin-controlled electrical signaling system for programdistribution comprising, a sending station including a'program-representative signal-supply circuit, an announcing circuit andmeans for selectively controlling the sending of signals from eitherthereof, a receiving station including a signal-output circuit and acoin-controlled means for controlling the energization of said outputcircuit, means at said receiving station for modifying the action ofsaid coin-controlled means, a signal-transmission link between saidstations, means at said sending station controlled by said iirst-namedmeans for transmitting a control signal only upon energization of saidlink from said announcing circuit, means at said receiving stationresponsive to said control signal for rendering said means for modifyingthe action of said coin-controlled means effective,

and means at said sending station for transmitting a control signalindependently of said rstnamed means, whereby a program signal may beapplied to said output circuit independently of the deposit of a coin insaid coin-controlled means.

16. A coin-controlled electrical signaling .sys-u tem for programdistribution comprising, a send,

ing station including a plurality of signal-supply circuits and meansfor controlling said circuits to send signals therefrom in sequence, areceiving.

station including a program-representative signal-output circuit and acoin-controlled means for controlling they energization of said outputcircuit, means at said receiving station for modifying the action ofsaid coin-controlled means, a signal-transmission link between saidstations,

means at said sending station for transmitting l from in sequence, areceiving station including' a signal-output circuit and acoin-controlled means for controlling the energization of said outputcircuit, means at said receiving station for modifying the action ofsaid coin-controlled means, a signal-transmission link between saidstations, means at said sending station for transmitting a controlsignal only upon energization of said link from saidannouncement-representative circuit, and means at said receiving stationresponsive to said control signal for rendering said means for modifyingthe action of said coincontrolled means effective.

18. A coin-controlled electrical signaling system for programdistribution comprising, a sending station including a plurality ofsignal-supply circuits, a plurality of `means individually responsive'tothe energization of saidsignal-supply circuits for maintaining all butone of said signalsupply circuits deenergized, and means for initiatingenergization of one of said signal-supply circuits, a receiving stationincluding a signaloutput circuit and a coin-controlled means forcontrolling the energization of said output circuit, means at saidreceiving station for modifying the action of said coin-controlledmeans, a signaltransmission link between said stations, means at saidsending station for transmitting a control signal only upon energizationof said link from a predetermined one of said supply circuits, and meansat said receiving stations responsive to said control signal forrendering said means for modifying the action of said coin-controlledmeans effective.

19. A coin-controlled electrical signaling system for programdistribution comprising, a sending station including aprogram-representative signal-supply circuit, anannouncement-representative signal-supply circuit, a pair of relaysindividually responsive to the energization of said signal-supplycircuits, each connected upon operation to deenergize the other of saidsignalsupply circuits, and means for initiating energiration of one ofsaid signal-supply circuits, a

yreceiving station including a signal-output circuit and acoin-controlled means for controlling the energization of said outputcircuit, means at said receiving station for modifying the action ofsaid coin-controlled means, a signal-transmission link between saidstations, means at said sending station for transmitting a controlsignal only upon energization of said link from saidannouncement-representative circuit, and means at said receiving stationresponsive to said control signal for rendering said means for modifyingthe action of said coin-controlled means effective.

20. A coin-controlled electrical signaling sys- 18 tem for programdistribution comprising, a sending station including aprogram-representative signal-supply circuit, anannouncement-representative signal-supply circuit and means forcontrolling said circuits to send signals therefrom in sequence, areceiving station including a signal-output circuit and acoin-controlled means for controlling the energization of said outputcircuit, independent means at said receiving station for controlling theenergization of-said output circuit, a signal transmission-link betweensaid stations, means at said sending station for transmitting a controlsignal only upon energization of said link from said announcementrepresentative circuit, and means at said receiving station responsiveto said control signal for rendering said independent means forcontrolling the energization of said output circuit eiective to energizesaid output circuit.

' GEORGE PI-ELPS.

REFERENCES CITED The following references are of record in the le ofthis patent:

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